[Note: These instructions are written for the classic Blogger post editor, composing in the Edit Html tab.]

Instructions for posting wide screen YouTube videos.

To embed wide screen videos, go to the video's url on YouTube. To the right of the Embed code, click on the Customize button. In the menu that expands below the Embed code, select 640x385. Copy the Embed code and paste it into your post.

Instructions for uploading images to be 640 pixels wide.

[Note: These instructions work for images that are wider than they are tall.]

In the image uploader, Choose a layout: "None", Image size: "Medium"

To upsize images, double the width and height specifications of the image (width: 640px; height: XXXpx;) and change s320 to s640 in the image url.

Advanced Image Editing:

To place two "Medium" images side-by-side, delete the return break between them.